混凝土多尺度建模的未来——走向水泥化学与混凝土结构工程的全面融合

Q2 Engineering

RILEM Technical Letters Pub Date : 2018-09-17 DOI:10.21809/RILEMTECHLETT.2018.60

T. Ishida, Tiao Wang

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引用次数: 7

摘要

近几十年来，世界各地越来越多地使用补充胶凝材料来提高混凝土性能。工程实践需要SCM的统一模型来预测和优化混合混凝土的性能。DuCOM-COM3是一个多化学物理和多尺度分析平台，可以跟踪钢筋混凝土结构的全寿命行为和性能。然而，SCMs的内在异质性和可变性对混合混凝土的建模提出了巨大挑战。本文首先回顾了目前掺合混凝土模型面临的挑战和困难。介绍了一种基于DuCOM-COM3分析平台的多相建模方案，以考虑不同的SCM。利用该建模方案，介绍了混合混凝土建模的研究路线图，以供未来研究。希望该路线图将有助于揭示供应链管理反应的机制及其对具体绩效的影响。

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Future of multiscale modelling of concrete - Toward a full integration of cement chemistry and concrete structural engineering

The use of supplementary cementitious materials (SCMs) to improve concrete performance has increased around the world in recent decades. Engineering practices demand a unified model for SCMs to predict and optimise the performance of blended concrete.DuCOM-COM3 is a multi-chemo-physical and multiscale analysis platform that can trace the whole-life behaviour and performance of reinforced concrete structures. However, the intrinsic heterogeneity and variability of SCMs present great challenges to the modelling of blended concrete. This paper first reviews the challenges and difficulties of current models of blended concrete. A multiphase modelling scheme based on DuCOM-COM3 analysis platform is introduced to consider different SCMs. Using the modelling scheme, a research road map for blended concrete modelling is introduced for future study. It is hoped that the roadmap will help to reveal the mechanism of SCM reactions and their effect on concrete performance.

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来源期刊

RILEM Technical Letters Materials Science-Materials Science (all)

CiteScore

5.00

自引率

0.00%

发文量

审稿时长

10 weeks